2QK7	Toxin	date	Jul 10, 2007
title	A Covalent S-F Heterodimer Of Staphylococcal Gamma-Hemolysin
authors	P.Roblin, V.Guillet, L.Maveyraud, L.Mourey
compound		source
Molecule: Gamma-Hemolysin Component A Chain: A Synonym: H-Gamma-2, H-Gamma-II Engineered: Yes Mutation: Yes		Organism_scientific: Staphylococcus Aureus Subsp. Aureus Organism_taxid: 196620 Strain: Mw2 Gene: Hlga, Hlg2 Expression_system: Escherichia Coli Bl21 Expression_system_taxid: 511693 Expression_system_strain: Bl21 Expression_system_vector_type: Plasmid Expression_system_plasmid: Pgex-6p-1
Molecule: Gamma-Hemolysin Component B Chain: B Synonym: H-Gamma-1, H-Gamma-I Engineered: Yes Mutation: Yes		Organism_scientific: Staphylococcus Aureus Subsp. Aureus Organism_taxid: 196620 Strain: Mw2 Gene: Hlgb Expression_system: Escherichia Coli Bl21 Expression_system_taxid: 511693 Expression_system_strain: Bl21 Expression_system_vector_type: Plasmid Expression_system_plasmid: Pgex-6p-1
symmetry	Space Group: P 61	R_factor 0.180 R_Free 0.239
crystal cell	length a length b length c angle alpha angle beta angle gamma 140.000 140.000 73.078 90.00 90.00 120.00
method	X-Ray Diffraction	resolution	2.40 Å
Gene Ontology	Chain Function Process Component A toxin activity B
Primary reference	A covalent S-F heterodimer of leucotoxin reveals molecular plasticity of beta-barrel pore-forming toxins., Roblin P, Guillet V, Joubert O, Keller D, Erard M, Maveyraud L, Prevost G, Mourey L, Proteins. 2008 Jan 23;71(1):485-496. PMID:18214982

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (96 Kb) [Save to disk] Biological Unit Coordinates (2qk7.pdb1.gz) 90 Kb CSU: Contacts of Structural Units for 2QK7 Likely Quarternary Molecular Structure file(s) for 2QK7 Structure Factors (1704 Kb) Retrieve 2QK7 in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 2QK7 from S2C, [Save to disk] Re-refined 2qk7 structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 2QK7 in 3D

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Visual 3D analysis of 2QK7

Ramachandran plot from PDBSum

Structure-derived information

Electron Density related parameters from EDS Electron Density Server, at Upsala Dipole moment, from Dipole Server at Weizmann Institute 3D motif for 2QK7, from MSDmotif at EBI

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [2qk7] [2qk7_B] [2qk7_A] SWISS-PROT database: [P0A074] [P0A077] Belongs to the α-hemolysin channel-forming toxin (αhl) family according to TCDB. Domain organization of [HLGA_STAAU] [HLGB_STAAU] by SWISSPFAM

Other resources with information on 2QK7

Community annotation for 2QK7 at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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